Commits on Jan 31, 2023

1. daemon: identify container exits by ProcessID …

   The Pid field of an exit event cannot be relied upon to differentiate
   exits of the container's task from exits of other container processes,
   i.e. execs. The Pid is reported by the runtime and is implementation-
   defined so there is no guarantee that a task's pid is distinct from the
   pids of any other process in the same container. In particular,
   kata-containers reports the pid of the hypervisor for all exit events.
   Update the daemon to differentiate container exits from exec exits by
   inspecting the event's ProcessID.
   
   The local_windows libcontainerd implementation already sets the
   ProcessID to InitProcessName on container exit events. Update the remote
   libcontainerd implementation to match. ContainerD guarantees that the
   process ID of a task (container init process) is set to the
   corresponding container ID, so use that invariant to distinguish task
   exits from other process exits.
   
   Signed-off-by: Cory Snider <csnider@mirantis.com>

   

   corhere committed Jan 31, 2023
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